ISC Class 12 Biology 2025 Most Predicted Questions
As the exam is scheduled to be conducted on March 21, 2025, aspirants who want to enhance their preparation can check here the ISC Class 12 Biology 2025 Most Predicted Questions below.
ISC Class 12 Biology 2025 Most Predicted Questions: The ISC Class 12 Biology Paper 1 (Theory) exam on March 21, 2025, is approaching, prompting students to ramp up their preparation. Educators have compiled a list of predicted questions that reflect key concepts and important topics from the curriculum. By focusing on these questions, students can allocate their time effectively, boost their confidence, and identify gaps in their understanding. As the exam date nears, utilizing these resources can enhance readiness and contribute to a successful performance.
ISC Class 12 Biology 2025 Most Predicted Questions
For all the aspirants, the ISC Class 12 Biology 2025 Most Predicted Questions have been provided below in the table.
Q. No. | Questions |
1 | Which among the following are the major producers in a terrestrial ecosystem? (a) Herbaceous plant (b) Woody plants (c) Algae and phytoplankton (d) None of the above |
2 | State four measures taken by the government to control the high level of air pollution in cities. |
3 | Which of the following is also called as brewer’s yeast? (a) Saccharomyces cerevisiae (b) Lactobacillus (c) Clostridium butylicum (d) None of the above |
4 | If 10000 K cal energy is available at the level of producers, calculate the amount of energy at the level of secondary consumers. |
5 | Assertion: Seed is the basis of our agriculture. Reason: Dehydration and dormancy of mature seeds are crucial for storage of seeds which can be used as food throughout the year and also to raise crop in the next season. |
6 | Name any two vertebrate body parts that are homologous to human fore- limbs.18. Mention the attributes which a population has but not an individual organism. |
7 | How has biotechnology been useful in controlling nematode infection in plants? Explain the technique involved in this process. |
8 | What is the difference between microsporogenesis and megasporogenesis. Name the type of cell division that takes place during this process. What are the structures that are formed at the end of these processes? |
9 | Draw a labelled diagram of the LS of the anatropous ovule. |
10 | Explain how hnRNA becomes the mRNA? |
11 | Differentiate between infectious diseases and non-infectious diseases. Give two examples of each. |
12 | The size of the population tells us a lot about its status in the habitat. Whatever ecological processes we wish to investigate in a population, be it the outcome of competition with another species, the impact of a predator or the effect of a pesticide application, we always evaluate them in terms of any change in the population size. Answer the questions that follow: (a) How would you represent a declining population with the help of an age pyramid? (b) An area is facing high mortality rate and emigration rate, what be the effect of population size in this case? (c) List two factors that are important for unimpeded growth of a population? |
13 | Classify the methods of contraception. Write short notes on any two of the methods mentioned by you. |
14 | What is recombination? Mention its applications with reference to genetic engineering. |
15 | DNA cannot pass through cell membranes, name and explain a technique by it can be forced to pass into a bacterial cell |
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